Computer is set to shut down V7 22” Wide monitor after 20 minutes. When I “wake it up” it does not come on immediately. Orange light is on and when I roll mouse, green light appears for split second & then goes out. After 15 secs light rapidly blinks green 2-3 times & goes out. After 3 or 4 times of this, monitor comes on and works perfectly! Also have this problem if I shut entire system down for a couple hours. Never used to do this, so I am wondering what is wrong.